TerraForums Venus Flytrap, Nepenthes, Drosera and more talk
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I am currently growing some p.'sethos'(reverse cross of 'weser') in a mix of equal parts of peat:sand:vermicultie and perlite.
As for inorganic mixes, I use a mix of perlite:sand and vermiculite in equal parts for pings like medusina, and 'sethos' x gypsicola that like more neutral soils.
They do fine in organic mixes on the acidic side though.
I have never had any fungus problems with my pings, so I cannot give good advice there. Probably best to scrape off the fungus and give the plants plenty of air circulation.